NEUR 3200 Midterm: Module-14-The-retina

• School: Carleton University
• Department: Neuroscience
• Course: NEUR 3200
• Professor: John Stead

Document Summary

For the multiple choice exam for module 12, you should be able to: be broadly familiar with the roles of the 5 main classes of neuron within the retina. Photoreceptors : contain membranous disks carrying photopigment. Signals relay from photoreceptor to bipolar cells to rgc. Horizontal cells: allow horizontal interactions between photoreceptors and bipolar cells. Will mediate light adaptation, maintaining sensitivity to contrast over a wide range of light intensities. Will form synapses that are post synaptic to bipolar cell axons, and presynaptic to retinal ganglion cells. Supplement the role of horizontal cells by creating inhibitory fields that highlight edges. Ganglion cells: be familiar with the three classes of retinal ganglion cells, and differences between them in structure, location and function. P ganglion cell: receive input primarily from cones, sensitive to colour, small cell bodies, small dendritic field and receptive field, found mainly in fovea.